Means for operating picker-drums.



PATENTED MAY15, 1906.

C. WALMSLEY. MEANS FOR OPERATING PICKER DRUMS.

APPLIOATION FILED MAR.25,1905.

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PATENTED MAY l5, 1906.

O. WALMSLBY. MEANS FOR OPERATING PICKER DRUMS.

APPLIOATION FILED MAR.25,1905.

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rnvirnn sTAIrns PATENT OFFICE.

CHARLES WALMSLEY, OF BUR-Y, ENGLAND, ASSIGNOR TO WANDEL & CO.

METALLTUOH-FABRIK, OF REUTLIN GEN, GERMANY.

l IVI EANS FOR OPERATING PICKER-DRUMS..

Specification of Letters Patent.

atented May 15, 1906.

Application filed March 25.1905. Serial No. 252,060.

.To if/ZZ 'whom t magy concern.:

Be it known that I, CHARLES WALMSLEY, a citizen of England, residing atSunny Bank, Tottington Road, Woolfold Bury, in the county of Lancaster,England, have invented certain new and Improved Means for OperatingPickerDrumsg and I do hereby declare the following to be a full, clear,and exact de scription of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

This invention relates to improvements in picker-drums used forstraining and picking fibrous material such as those used in themanufacture of paper and the like.

Theobject of the invention is to provide improved means for rotating,vibrating, feeding and cleaning such picker-drums.

In the accompanying drawings the invention is shown as embodied in apreferred form', as follows:

Figure 1 is an end view. Fig. 2 is a side view, and Fig. 3 is a detachedsectional view.

The pickendrums A consist, as usual, of a shell of cylindrical formhaving a number of suitable slits in the periphery and are mounted aboveand partially within a vat or trough B upon hollow trunnions C,journaled in rocker-arms D, swinging from pivots E, supported in themachinedrame. The lower portion of the arms D short of their end isprovided with adjustable wrought-iron hammers E, operating againstindia-rubber or other resilient buffers E2, inclosed in a suitablesupporting-box, as shown. The lower ends of the rocker-arms D areprovided with steel dies F, arranged to contact with the face of a camG, fixed upon the shaft I-I, rotating upon bearings inclosed inoilsboxes J and driven by any suitable source of power.

It will be seen that as the shaft II rotates the cam G imparts avibratory movement to the rocker-arms D through the dies F, andconsequently such motion is transmitted to the picker-drums A as therocker-arms swing upon the pivots E.

To effect the rotation of the pickersdrums, a pulley L is provided,which may be driven from a pulley L, mounted upon the shaft I-I. Thepulley L transmits its motion through spur or worm gearing M, inclosedin an oilbox N, by means of suitable ropes, belts, or the like O, kepttaut in any usual manner, to

` pulleys P, carried by the trunnions C, the

picker-drums A being thereby rotated.

The stuff or paper stock is introduced to the drums by pipes Y enteringthe hollow trunnions O and provided with suitable holes in the bottom,so arranged as to distribute the stock throughout the interior of thedrums. By the rotation and vibration of the drums the stock worksthrough the slits in their periphery and into the trough B, whence it isdischarged from one side at X, Fig. l, or from the central portion at X,Fig. 3, from which it is conducted away.

i Above the drums a pipe Z is arranged,

which is provided with a number of fine per? forations for supplying jets of water to the upper outer surface of the drum to effect thecleaning and washing of the same. Within the drums suitable trays c areplaced which catch the dirt and coarse material washed from thedrum-surface by the water `iets, whence it is led away through thetrunnions C at the opposite ends of the drums from the inlet. A gulley cis formed in the bottom of the trough B and provided with a tap d forthe purpose of thoroughly washing out the trough B after use.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. In a device of the character described, a supporting-frame, adepending rocker-arm pivoted to the frame, a picker-drum rotating upontrunnions journaled in the rocker-arm to one side of the pivotal supportthereof, a cam bearing against the face of the depending arm, means forrotating the drum and the cam, means for limiting the vibratory movementof the depending arm under the action of the cam, an adjustable hammercarried by each rocker-arm, and a resilient abutment for said hammers.

2. In a device of the character described,'a supporting frame, dependingrocker arms pivoted to the frame, picker-drums rotating upon trunnionsjournaled in the rocker-arms to one side of the pivotal supportsthereof, a cam arranged between and bearing against the opposing facesof the depending rockerarms, a drive-pulley, belt connections betweenthe drive-pulley and the trunnions, and means for driving the cam andpulley.

3. In a device of the character described, a

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supporting-frame, a depending rocker-arm pivoted to the frame, apicker-drum rotating upon hollow trunnions j ournaled in the rocker-armto one side of the pivotal support thereof, a cam bearing against theface of the depending rocker-arm, means for rotating the drum and thecam, a feed-inlet to the interior of the drum through the trunnion atone end, a trough arranged beneath the drum, and a discharge-outlet fromsaid trough.

4. In a device of the character described, a supporting-frame, adepending rocker-arm pivoted to the frame, a picker-drum rotating uponhollow trunnions journaled in the rocker-arm to one side of the pivotalsupport thereof, a cam bearing against the face of the depending arm,means for rotating the drum and the cam, and means for limiting thevibratory movement of the depending arm under the action of the cam,feed-inlet pipes leading to the interior of thedrums through the hollowtrunnions at one end thereof, said pipes being provided with dischargeperforations, a trough arranged beneath the drums and provided with anoutlet from the medial portion of the same above the bottom, and acleansing-tap arranged in the bottom of the trough.

5. In a device of the character described, a

`supporting-frarne, a depending vrocker-arm pivoted to the frame, apicker-drum rotating upon hollow trunnions journaled in the rocker-armto one side of the pivotal support thereof, a cam bearing against theface of the depending arm, means for rotating the drum and the cam,means for limiting the vibratory movement of the depending arm under theaction of the cam, an adjustable hammer carried by each rocker-arm, aresilient abutment for said hammers, feed-inlet pipes leading throughthe hollow trunnions to the interior of the drums and dischargingtherein through perforations, a trough arranged beneath the drums andprovided With a discharge above the bottom thereof, a spray-pipearranged to discharge upon the upper exterior face of the drums, a trayarranged Within the drums above the feed-inlet pipes and discharging atthe opposite ends of the drums from the feedinlets, and a cleansing-taparranged in the bottom of the trough.

In testimony whereof I hereunto aiix my signature in the presence of twowitnesses.

CHARLES WALMSLEY.

Witnesses:

F. S. N. PEACOGKE, R. WALLACE TAYLOR.

